Description: fix FTBFS with GCC-9
Author: Joachim Reichel <joachim.reichel@posteo.de>
Bug-Debian: https://bugs.debian.org/925782
Last-Update: 2019-09-01

--- a/texception.h
+++ b/texception.h
@@ -38,10 +38,10 @@
 
 #define TExceptionN(n) public: virtual const char *name()  const { return #n; }
 #define TExceptionM(m) public: virtual const char *message() const { return m; }
-#define TExceptionM1(m,a) public: virtual const char *message() const { char *buf; asprintf(&buf, m, a); return buf; }
-#define TExceptionM2(m,a,b) public: virtual const char *message() const { char *buf; asprintf(&buf, m, a,b); return buf; }
-#define TExceptionM3(m,a,b,c) public: virtual const char *message() const { char *buf; asprintf(&buf, m, a,b,c); return buf; }
-#define TExceptionM4(m,a,b,c,d) public: virtual const char *message() const { char *buf; asprintf(&buf, m, a,b,c,d); return buf; }
+#define TExceptionM1(m,a) public: virtual const char *message() const { char *buf; int result = asprintf(&buf, m, a); return result != -1 ? buf : "asprintf failure"; }
+#define TExceptionM2(m,a,b) public: virtual const char *message() const { char *buf; int result = asprintf(&buf, m, a,b); return result != -1 ? buf : "asprintf failure"; }
+#define TExceptionM3(m,a,b,c) public: virtual const char *message() const { char *buf; int result = asprintf(&buf, m, a,b,c); return result != -1 ? buf : "asprintf failure"; }
+#define TExceptionM4(m,a,b,c,d) public: virtual const char *message() const { char *buf; int result = asprintf(&buf, m, a,b,c,d); return result != -1 ? buf : "asprintf failure"; }
 
 // base class of all exceptions 
 class TException {
--- a/tstring.cc
+++ b/tstring.cc
@@ -111,7 +111,7 @@
 tstring::Rep *tstring::Rep::create(size_t tmem) {
    size_t m = sizeof(Rep) << 1;
    while((m - 1 - sizeof(Rep)) < tmem) m <<= 1;
-   Rep *p = new (m - 1 - sizeof(Rep)) Rep;
+   Rep *p = new (/*tag*/ true, m - 1 - sizeof(Rep)) Rep;
    p->mem = m - 1 - sizeof(Rep); p->ref = 1; p->vulnerable = false;
    return p;
 }
--- a/tstring.h
+++ b/tstring.h
@@ -71,9 +71,12 @@
       
       // static methods
       // operator new for this class
-      static void * operator new (size_t size, size_t tmem) {
+      // add a tag parameter to ensure that the signature of the delete operator does not collide with the (void*,size_t) overload
+      static void * operator new (size_t size, bool /*tag*/, size_t tmem) {
 	 return ::operator new (size + tmem + 1);}
-      static void operator delete (void *p, size_t) {
+      static void operator delete (void *p, bool /*tag*/, size_t) {
+	 ::operator delete (p); }
+      static void operator delete (void *p) {
 	 ::operator delete (p); }
       
       // create a new representation